The underlying value here seems to be that good communication is absolutely essential. The kind of person who goes into SEO blogging professionally is likely a

The underlying value here seems to be that good communication is absolutely essential. The kind of person who goes into SEO blogging professionally is likely a very comfortable writer. It may be that one person is better able to express themselves in a written form, and one person is better able to express themselves orally. It sounds like this isn't really about the ceremony of the note - they're handling household logistics – so much as putting the effort into communicating, so I could see that being best done by one person as writing, and by the other spoken.